Basic Info.
Model NO.
MG 87052-57
Handle
Plastic Cement
Mirror Material
Glass
Function
Magnifier
Shape
Circular
Carton Size
41X30X38.5cm
Qty/CTN
240PCS
G.W.
18kg
N.W.
17kg
Transport Package
by Sea
Specification
50MM/65MM/75MM/90MM/100MM
Trademark
HB
Origin
China
HS Code
9013801000
Production Capacity
1000000PCS/PER MONTH
Product Description
PRODUCT INFORMATIONG
| low price Large Magnifying Glass portable Handheld Reading Magnifier | |||||
| power | 5X | 4X | 2.5X | 2X | 1.75X |
| lens diameter | 50MM | 65MM | 75MM | 90MM | 100MM |
| Pcs/carton | 240PCS | 240PCS | 240PCS | 120PCS | 120PCS |
| Weight/carton | 12KG | 18KG | 25KG | 20KG | 21KG |
| carton size | 40x29x32cm | 41x30x38.5cm | 44x37x45cm | 51x40x23cm | 61x46x24cm |
| A magnifying glass is a use of a convex lens that causes the object length to be less than the focal length, resulting in a magnified virtual image. When the object distance changes, the image distance also changes, and the law is: 1/object distance+1/image distance=1/focal length. For the use of a magnifying glass, it is also stipulated that the magnification of the image at a clear viewing distance (25 centimeters) is the magnification of the magnifying glass. So the following formula can be derived: amplification factor=1+25/f. Where f is the focal length, in centimeters. | |||||
